<%@ page language="java" import="java.util.*" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
request.setAttribute("userName", "mr");
request.setAttribute("pwd", "mrsoft");
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
userName=${userName }<br>
pwd=${pwd }<br>
\${userName!="" and (userName == "明日")}：
${userName!="" and (userName == "明日")}<br>
\${userName!="mr" and (userName == "mrsoft")}:
${userName!="mr" and (userName == "mrsoft")}
</body>
</html>